Muscular System

It's located on your upper ribs, just on the side of your chest

skeletal system

first nerve impulse comes to neuromuscular joint then neurotransmitter acetylcoline release to synaptic cleft and depolarize the muscular joint then ca released from

sarcoplasmic reticulum and make the tropomyosin to remove from binding place with myosin then myosin pull the actin and they overlap on each other h band disappear but a band remines untact howerver i bands become shorter,after removing the nerve impulse the ca pumped back to sarcoplasmic reteculum and the lenght of muscle return to same position

You can't control involuntary muscles but you can control voluntary muscles.

The muscles of mastication control the jaw, specifically its adduction.

A loss of tone does not mean muscle wastage, which many people may think, but it can lead to muscle wastage if it is due to the muscle not being able to contract/function anymore. Muscle wastage is known as atrophy. Low tone is known as hypotonia (the opposite being hypertonia [spasticity]). A muscle with low tone is generally weak against resistance, where as a muscle with high tone has a lot of resistance against a force. Tone is set unconsciously so that we can move fluently, so unless it is loss of tone due to some kind of neurological disorder, then it just means that the muscle is not in a contracted state in any way.

aponeurosis

The heart is the only organ that is also a muscle. There are no other organs that are an actual part of the muscular system. Many organs are lined with muscle in order to help them function, such as the intestines and the stomach. Hope that's what you were looking for.

The muscles used to chew are called the "Muscles Of Mastication" as mastication is the technical term for chewing. In practical terms there are only a few muscles used for chewing each and they all receive inervation from the Mandibular branch of the trigeminal nerve. The most external of these muscles is the Masseter, it is used to pull the Mandible (jaw) forward and upwards. It is atached between the corner of the mandible up to the cheek bone. The next one in is the much larger temporalis muscle. It is also used to pull the mandible up but this time backwards instead of forwards. It is atached between almost the whold side of the cranium and a projection at the top from part of the mandible called the Corinoid Process. This next two are kind of working together to swing the jaw from side so side as well as push it forwards. These are the Medial Pterygoid and the Lateral Pterygoid which both lie slightly deeper in the skull and atach from parts that could not be understood without a fairly deep knowlege of anatomy. So in total there are 4 muscle of mastication on each side of the head, thereofre 8 muscles in total. It might also be said by some that another muscle is involved, the Buccinator. This muscle is really a muscle of facial expression and is inervated by the facial nerve. It is involved in mastication too though by aiding the tongue to push food from one side of the mouth to the other. In short there are 8 muscles (4 on each side) used to chew.

aponeurorrhaphy

Hi

There are so many factors including age, the amount of exercise you do, your food intake, etc, but go to this website as they have a table which will definitely help you:

http://askthetrainer.com/body-fat-percentage-in-women.html

Good luck! :)

They get tired like all things. Also ligaments a tendons start loosing up.

Cardiac muscle cells are located in the walls of the heart. They are responsible for pumping blood throughout the body.

There are 2 key muscles groups:

Flexors push the head forward to keep it from falling backwards are comprised of the:

Scalenus, Prevertebral and Sternomastoid muscles.

The opposing extensors pull the head backward to prevent it from falling forwards so we arent looking at the group all the time:

Splenus, Semi spinalus and capitis.

These two groups oppose each other so that in a standard posture our head is facing directly forward and not up or down.

The median nerve supplies most of the flexor muscles of the human forearm, and some hand muscles. The ulnar nerve also supplies two flexor muscles, and most of the remaining hand muscles that the median nerve does not cover.

radial tuberosity

Mal-formation of the bones can occur if the skeletal system is not taken care of properly

The intrinsic muscles of the eye are the dilator (radial), the sphincter pupillae (circular) constrictor muscle and the ciliary muscle. The iris contains the dilator pupillae and the constrictor pupillae with antagonist effects on the diameter of the pupil.

The ciliary muscle is a smooth muscle that, when contracted relaxes the suspensory ligament of the lens. Contraction of this muscle is part of the accommodation reflex and under the control of parasympathetic fibers that travel with cranial nerve 3.

... basically it is the "levator labii superioris muscle". -roelbondoc

In short, the basic contraction unit of the muscle is the sarcomere. Many sarcomeres work serially and in parallel to acheive the full contraction ability of the muscle. The sarcomere is made up of many filaments of Actin and Myosin, two types of protein based filaments that reach out towards each other from opposing sides of the sarcomere. When the muscle is at rest, the Actin and myosin filaments overlap each other the least. In order for the muscle to contract, the filaments from the opposing sides slide over each other thus pulling both walls of the sarcomere towards each other, with them. When the muscle is fully contacted, the filaments overlap each other the most. The sliding motion is activated by calcium that floods the sarcomeres (at the end of a process that is triggered by a command from a motor nerve). The calcium reveals sites on the Actin filaments at which molecular 'whips' extending from the Myosin filaments, can throw themselves, attach, pull, and leave, using the muscle's energy reserves in the process. Each molecular whip works at its own time (much like cylinders in an internal combustion engine), so that in any given time, contact between the filaments is being made by some of the whips.

Skeletal Muscle tissue is the only tissue that responds to voluntary movement. Smooth and Cardiac muscle tissue are controlled by the central nervous system.

Muscle loss. Have you not been eating?